const multipleFileUpload = document.querySelector('#multipleFileUpload');


function uploadMultipleFile() {
    const files = Array.from(multipleFileUpload.files)
    uploadFile ( '/upload', files, 'multipleFileUpload')
}

function uploadFile(url, files, fileName) {
    let formData = new FormData()
    files.forEach(file => {
        formData.append(fileName, file)
    })
   // 上传文件接口 （url， formData）
}